mirror of
https://github.com/MariaDB/server.git
synced 2025-11-24 06:01:25 +03:00
6d1f1b61b5
Ever since commit 007f68c37f,
ALTER TABLE no longer invokes handler::open() after
handler::commit_inplace_alter_table().
ha_innobase::reload_statistics(): Reload or recompute statistics
after ALTER TABLE.
innodb_notify_tabledef_changed(): A new function to invoke
ha_innobase::reload_statistics().
handlerton::notify_tabledef_changed(): Add the parameter handler*
so that ha_innobase::reload_statistics() can be invoked.
ha_partition::notify_tabledef_changed(),
partition_notify_tabledef_changed(): Pass through the call
to any partitions or subpartitions.
This is based on code that was supplied by Monty.
140 lines
5.0 KiB
Plaintext
140 lines
5.0 KiB
Plaintext
CREATE TABLE t (
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a INT,
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b INT,
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c INT GENERATED ALWAYS AS(a+b),
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d INT GENERATED ALWAYS AS(a+b+b),
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KEY idxa (a),
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KEY vidxcd (c, d)
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) ENGINE=INNODB STATS_PERSISTENT=1 STATS_AUTO_RECALC=1;
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INSERT INTO t (a,b) VALUES (1, 2);
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxa n_diff_pfx01 a
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idxa n_diff_pfx02 a,DB_ROW_ID
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idxa n_leaf_pages Number of leaf pages in the index
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idxa size Number of pages in the index
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vidxcd n_diff_pfx01 c
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vidxcd n_diff_pfx02 c,d
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vidxcd n_diff_pfx03 c,d,DB_ROW_ID
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vidxcd n_leaf_pages Number of leaf pages in the index
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vidxcd size Number of pages in the index
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ALTER TABLE t ADD COLUMN e INT GENERATED ALWAYS AS(a+a+b), ADD INDEX idxb (b), ALGORITHM=INPLACE;
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select count(*) from t;
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count(*)
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1
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxa n_diff_pfx01 a
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idxa n_diff_pfx02 a,DB_ROW_ID
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idxa n_leaf_pages Number of leaf pages in the index
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idxa size Number of pages in the index
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idxb n_diff_pfx01 b
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idxb n_diff_pfx02 b,DB_ROW_ID
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idxb n_leaf_pages Number of leaf pages in the index
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idxb size Number of pages in the index
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vidxcd n_diff_pfx01 c
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vidxcd n_diff_pfx02 c,d
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vidxcd n_diff_pfx03 c,d,DB_ROW_ID
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vidxcd n_leaf_pages Number of leaf pages in the index
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vidxcd size Number of pages in the index
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ALTER TABLE t DROP COLUMN c, DROP INDEX idxa, ALGORITHM=INPLACE;
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select count(*) from t;
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count(*)
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1
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxb n_diff_pfx01 b
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idxb n_diff_pfx02 b,DB_ROW_ID
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idxb n_leaf_pages Number of leaf pages in the index
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idxb size Number of pages in the index
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vidxcd n_diff_pfx01 d
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vidxcd n_diff_pfx02 d,DB_ROW_ID
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vidxcd n_leaf_pages Number of leaf pages in the index
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vidxcd size Number of pages in the index
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ALTER TABLE t ADD INDEX vidxe (e), ALGORITHM=INPLACE;
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select count(*) from t;
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count(*)
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1
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxb n_diff_pfx01 b
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idxb n_diff_pfx02 b,DB_ROW_ID
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idxb n_leaf_pages Number of leaf pages in the index
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idxb size Number of pages in the index
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vidxcd n_diff_pfx01 d
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vidxcd n_diff_pfx02 d,DB_ROW_ID
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vidxcd n_leaf_pages Number of leaf pages in the index
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vidxcd size Number of pages in the index
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vidxe n_diff_pfx01 e
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vidxe n_diff_pfx02 e,DB_ROW_ID
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vidxe n_leaf_pages Number of leaf pages in the index
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vidxe size Number of pages in the index
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ALTER TABLE t ADD COLUMN f INT GENERATED ALWAYS AS(a + a), ADD INDEX vidxf (f), ALGORITHM=INPLACE;
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select count(*) from t;
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count(*)
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1
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxb n_diff_pfx01 b
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idxb n_diff_pfx02 b,DB_ROW_ID
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idxb n_leaf_pages Number of leaf pages in the index
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idxb size Number of pages in the index
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vidxcd n_diff_pfx01 d
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vidxcd n_diff_pfx02 d,DB_ROW_ID
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vidxcd n_leaf_pages Number of leaf pages in the index
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vidxcd size Number of pages in the index
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vidxe n_diff_pfx01 e
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vidxe n_diff_pfx02 e,DB_ROW_ID
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vidxe n_leaf_pages Number of leaf pages in the index
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vidxe size Number of pages in the index
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vidxf n_diff_pfx01 f
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vidxf n_diff_pfx02 f,DB_ROW_ID
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vidxf n_leaf_pages Number of leaf pages in the index
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vidxf size Number of pages in the index
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ALTER TABLE t DROP INDEX vidxcd;
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SELECT index_name, stat_name, stat_description
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FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't';
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index_name stat_name stat_description
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GEN_CLUST_INDEX n_diff_pfx01 DB_ROW_ID
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GEN_CLUST_INDEX n_leaf_pages Number of leaf pages in the index
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GEN_CLUST_INDEX size Number of pages in the index
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idxb n_diff_pfx01 b
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idxb n_diff_pfx02 b,DB_ROW_ID
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idxb n_leaf_pages Number of leaf pages in the index
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idxb size Number of pages in the index
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vidxe n_diff_pfx01 e
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vidxe n_diff_pfx02 e,DB_ROW_ID
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vidxe n_leaf_pages Number of leaf pages in the index
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vidxe size Number of pages in the index
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vidxf n_diff_pfx01 f
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vidxf n_diff_pfx02 f,DB_ROW_ID
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vidxf n_leaf_pages Number of leaf pages in the index
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vidxf size Number of pages in the index
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DROP TABLE t;
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